Home / 7,451.50-11,176.98-1,904.80

Finding the Fourth Proportional to 7,451.50, 11,176.98 and 1,904.80

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Solution

The fourth proportional to 7,451.50, 11,176.98 and 1,904.80 is: 2,857.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,451.50 : 11,176.98 = 1,904.80 : x
  2. Step 2: Convert to fraction form
    7,451.50/11,176.98 = 1,904.80/x
  3. Step 3: Cross multiply
    7,451.50x = 11,176.98 × 1,904.80
  4. Step 4: Simplify right side
    7,451.50x = 21,289,911.50
  5. Step 5: Solve for x
    x = 21,289,911.50/7,451.50
  6. Step 6: Final answer
    x = 2,857.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.